Brace for steam-boilers.



PATENTED APR. 28, 1903.

W. E. NILES. BRAGB FOR STEAM BOILERS.

APPLICATION FILED MAY 5. 1902.

N0 MODEL.

NITFD hirarns Partner @rrrcn.

WILLIAM EMERSON NILES, OF CHICAGO, ILLINOIS.

BRACE FOR STEAM BOlLERS.

EiEECIFICATION formingpart Of Letters Patent NO. 726,450, dated April. 28, 1903.

" Application filed May 5, 1902. Serial No. 106K160. (No model.)

To rtZZ whom, it may concern:

Be it known that 1, WILLIAM EMERSON NILEs, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Brace for Steam-Boilers and the Lil e,of which the following is a specification.

The presentinvention relates to braces, and particularly to braces for boilers and similar structures which have to withstand great strain.

The object of the invention is to provide an extremely simple and consequently inexpensive brace which may be readily fitted in place and having great strength to withstand longitudinal strain, said brace being so constructed that it will yield *to any lateral vibration of the body braced, and therefore capable of being made very light.

In the accompanying drawings there are illustrated several embodiments of the invention, all of which accomplish the above-mentioned object.

In said drawings, Figure 1 is a sectional view through a portion of a boiler,showing the preferred construction of bracein place therein. Fig. 2 is a horizontal sectional view through said boiler. Fig. 3 is a detail view showing a slightly-modified form of construction. Fig. 4 is a View of still another modification.

Similar characters of reference designate corresponding parts in all the figures of the drawings.

In all the constructions shown a brace-arm 10 is employed having at one end a terminal eye 11, through which is passed a U-shaped stirrup 12, the connection thus formed permitting of the two members 10 and 12 yield ing laterally in any direction. In the preferred embodiment (shown in Figs. 1 and 2) the other end of the arm is flattened, as shown at 13, and provided with openings 14, designed to receive rivets 15. Furthermore, in this form the terminals of the U-shaped stirv rup 12 are reduced, as shown at 16, to form rivet-shanks, the ends 17 of which are adapted to be upset, as shown, shoulders 18 being formed at the inner ends of said shanks.

In Fig. 3 a slight modification is shown in the construction of the stirrup in that three arms are employed instead of two, the U-.

shaped arrangement being still maintained,

however, as are also the contracted or reduced terminals 16. These arms are connected, and one of them is passed through the eye of the brace-arm. In Fig. 4 the arrangement is somewhat different. In this case the bracearm is shown with eyes 11 at both ends, U- shaped stirrnps 12" being employed, one of said stirrups having offset terminals 12, fastened by rivets, as 12. The terminals of the other stirrup are flattened, as shown at 12, and have openings 12 through said flattened ends.

The manner of securing the brace in place will be apparent by reference to Fig. 1,wherein a section of a boiler-head is shown at A, the body-plate of said boiler being designated by B. The rivet ends 16 of the stirrup 12 are passed through the head A, and the extremities 17 are upset, as shown. The flattened face 13 of the other end of the arm rests against the inn er face of the body-plate B, and the rivets 15 are passed therethrongh. It will be seen that this construction is extremely simple and can be readily applied to any point of the boiler without the necessity of unnecessary adjustment. Furthermore, the U-shaped stirrup passing directly through the boiler-head is extremely strong and has a comparatively great holding zone, because of the spaced terminals. This zone is increased by means of the construction shown in Fig. 3. In the device as shown in Fig. 4 the offset terminals 12 are riveted against the inner face of the body, as shown, while the flattened ends 12 of the other stirrup are riveted to the boiler-plate. It will be observed that in all these forms the brace will withstand great 1 strain longitudinally, but will give to the lateral vibration of the boiler. This will therefore obviate the necessity of a strong brace heretofore generally necessary to withstand the side vibration, as these braces need only be made sufficiently strong to withstand the longitudinal strain. The entire structure'is extremely simple, and it will be evident that it can be manufactured at small cost.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a structure of the class described, the combination with separate walls of the structure, of a brace-arm secured at one end to one of the walls and having an eye at its other end, and a stirrup passed through the eye and having its terminals secured to the other Wall.

2. In astructure of the class described, the combination with the angularly disposed Walls of the structure, of a brace secured to one of the walls and having an integral eye at its other end, and a stirrup passed through the eye, said stirrup having its terminals passed through the other wall and upset over the face thereof.

3. A brace for steam-boilers and the like, comprising a brace-arm having a terminal eye, a substantially U-shaped stirrup passed through said eye and freely movable therein, the terminals of said stirrup being reduced and constituting rivet-shanks arranged to be passed through and upset over a plate or body.

4. In a structure of the class described, the combination with the angularly disposed Walls of the structure, of abrace-arm having one end flattened and resting against one of the walls, rivets passing through the flattened end and the wall, and a stirrup loosely connected to the other end of the brace-arm and riveted to the other wall of the boiler.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

WILLIAM EMERSON NILES.

Witnesses:

E. R. FIcK, I-I. VAN BUREN. 

